diff --git a/scripts/upgrade b/scripts/upgrade
index de22843..fae4721 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -66,7 +66,7 @@ ynh_script_progression --message="Upgrading $app dependencies..." --weight=7
 
 pushd "$install_dir"
 	ynh_use_nodejs
-	ynh_exec_warn_less ynh_exec_as $app $ynh_node_load_PATH $ynh_npm install --production
+	ynh_exec_warn_less ynh_exec_as $app $ynh_node_load_PATH $ynh_npm install --omit=dev
 	ynh_exec_warn_less ynh_exec_as $app $ynh_node_load_PATH $ynh_npm run download-dist
 	ynh_exec_warn_less ynh_exec_as $app $ynh_node_load_PATH $ynh_npm cache clean -f
 	# Residue of old versions caching